Appearing on ITV's Lorraine today, 'All Rise' singer Antony explained: "When I was offered the part after auditioning, I had to take it and postpone something... probably the happiest day of [our life]. We postponed the wedding. It was set for September but that's the opening night of the show.

"I went for the audition and the director and producers said, 'We like what you're doing with the part, we want you to have it.' There and then. I said, 'Wicked! When does it open?' '12th September'. 'Great.' Phone call… Invites were about to be sent out. We have postponed it to next year. She is cool, she is great. She is absolutely fine. She understood it's something I always wanted to do."

He added: "I'm really looking forward to it. It's a musical I always loved. I love the music, the story, everything about it."

At the time, his rep said: "It is with great pleasure we are pleased to announce the engagement ofAntony Costa and his beautiful girlfriend Rosanna. Antony surprised Rosanna on her birthday today with a visit to Paris where he asked for her hand in marriage and she happily said yes.

"Everyone in Blue and the entire management team wish both Rosanna and Antony the very best for the future and we are all looking forward to the wedding."